/*
 * 字符类型判断（4分）
 */

#include <stdio.h>

int main() {
	setbuf(stdout, NULL);

	char input;

	printf("Input simple:\n");
	scanf("%c", &input);

	if (input >= 'a' && input <= 'z' ||
	    input >= 'A' && input <= 'Z') {
		printf("It is an English character.\n");
	} else if (input >= '0' && input <= '9') {
		printf("It is a digit character.\n");
	} else {
		printf("It is other character.\n");
	}

	return 0;
}